
##sorted the strings list by lowercase

def sortstrings(strings):
    '''unittest
    >>> sortstrings([])
    []
    >>> sortstrings(["dddddd"])
    ['dddddd']
    >>> sortstrings(['abcde', 'abcdef', 'mcdeg'])            
    ['abcde', 'abcdef', 'mcdeg']
    >>> sortstrings(['aBcdemmmmmm2', 'Abcdefmmmmmm3', 'mmmmmm7mcdeg'])            
    ['Abcdefmmmmmm3', 'aBcdemmmmmm2', 'mmmmmm7mcdeg']
    >>> sortstrings(['abcdemmmmmm2', 'bma', 'cda'])            
    ['abcdemmmmmm2', 'bma', 'cda']
    >>> sortstrings(['abcdemmmmmm2', '123', '52mmmmm'])            
    ['123', '52mmmmm', 'abcdemmmmmm2']
    '''
        
    return sorted(strings, key = str.lower) 
import doctest
doctest.testmod()